Man of Steel 2 (Sorta)
How did Barry break the universe? By doing the most horrifying thing imaginable: bringing us back to Man of Steel. Well, gags aside, the real point here is that in this future Barry has made by saving his mother, Superman is not around to stop a rogue group of Kryptonians from assaulting earth with the World Engine, old technology designed to terraform the world into a New Krypton.
